To implement the Triple DES Algorithm C code, you will have to install the des.h header file as it is not available in C library files by default. Alternatively, you can even create your own header files using this method.

Header File C Program for OpenSSL DES.h

For the above C program to execute properly, you will have to download des.h header file and install it in your operating system. Please check this des.h file.

If you have any compilation errors or doubts about this C program to encrypt data using Triple Data Encryption Standard Algorithm, let us discuss it in the comment section below.

For more information on Triple DES algorithm in cryptography, please check OpenSSL or Wikipedia.